I am trying to use the PDF functions with PHP-5 on a windows environment. I downloaded the PDFLib lite 7.0.2 but I can not find anywhere how to get it to work. The PHP documentation does not provide much help either. I appreciate any help or any pointer on this subject.

I don't know, how you install it under Windows, but I know, how to install it under Unix.
There you just have to do a command at the commandline:
pecl install channel://pecl.php.net/pdflib-2.1.3I don't know if there is such a function under Windows. So I can't really help you, but I wanted to answer you at least.